Vagrant issue Timed out while waiting for the machine to boot

vagrant up
==> default: Importing base box 'ubuntu/xenial64'...
==> default: Checking if box 'ubuntu/xenial64' is up to date...
==> default: Setting the name of the VM: vagrant_default_1516452195026_53624
default: Adapter 1: nat
==> default: Forwarding ports...
default: 7474 (guest) => 7474 (host) (adapter 1)
default: 7687 (guest) => 7687 (host) (adapter 1)
==> default: Resized disk: old 10240 MB, req 51200 MB, new 51200 MB
==> default: You may need to resize the filesystem from within the guest.
==> default: Booting VM...
default: SSH address:
default: SSH username: vagrant
default: SSH auth method: private key
Timed out while waiting for the machine to boot. This means that
Vagrant was unable to communicate with the guest machine within
the configured ("config.vm.boot_timeout" value) time period.

If you look above, you should be able to see the error(s) that
Vagrant had when attempting to connect to the machine. These errors
are usually good hints as to what may be wrong.

If you're using a custom box, make sure that networking is properly
working and you're able to connect to the machine. It is a common
problem that networking isn't setup properly in these boxes.
Verify that authentication configurations are also setup properly,
as well.

If the box appears to be booting properly, you may want to increase
the timeout ("config.vm.boot_timeout") value.

vagrant destroy

Upgrade Virtualbox and do the vagrant up again